Injured Washington Redskins running back Clinton Portis said Tuesday he has been cleared to play by a local doctor but will wait until Monday’s examination by a doctor in Pittsburgh.

Portis was ruled out of Sunday’s game against New Orleans because of a concussion suffered three weeks ago in Atlanta.

Appearing on the ESPN 980’s “The John Thompson Show,” Portis said, “It’s just the vision. Outside of that, I haven’t really tried anything else. I wasn’t having any headaches or nausea or anything. Once we realized that, it was basically getting my eye back up to speed.”

It wasn’t clarified whether Portis is still experiencing vision problems when he moves his head quickly.

“I would love to be on the field trying to get out there and finish out the season,” he said. “At the same time, I have to do what’s safe and what’s best. If I’m cleared and can get back out there for the last few games, I’m definitely going to try and get back out there. If I can’t, I’ll go into the offseason healthy and starting off fresh next year.”

STEELERS: Quarterback Ben Roethlisberger has worked out without problems since missing Sunday’s game in Baltimore with a concussion. He is expected to play Sunday against Oakland.

Roethlisberger was held out of the 20-17 overtime loss to Baltimore after having post-practice headaches Wednesday, Thursday and Friday. A team doctor recommended Saturday that the quarterback not play, and coach Mike Tomlin agreed.

The Steelers did not practice Monday, but Roethlisberger worked out on his own and did not have any problems, Tomlin said.

The loss is devastating for Cleveland’s defense, which is already without starting linebackers D’Qwell Jackson and Eric Barton. Both had their seasons ended by injuries.

Rogers, a three-time Pro Bowl selection, had 36 tackles with two sacks.

EAGLES: Tight end Brent Celek signed a six-year contract extension, becoming the latest player to ink a long-term deal with Philadelphia.

Celek’s deal runs through 2016. Last week, the Eagles gave right tackle Winston Justice a four-year extension. The team has 22 players signed through 2012 and beyond.

Celek has emerged as one of the top players at his position in his first full season as a starter. He’s tied for seventh in receptions (54), fifth in yards (601), and tied for fourth in touchdowns (five) among all NFL tight ends. He leads the Eagles in catches and TDs.